Write the number in scientific notation.2,070,000
A. 2.7 × 106
B. 2.07 × 104
C. 2.07 × 105
D. 2.07 × 106
Answer: D
Mathematics
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An x-ray is done for a time of 2.5s with a current setting of 60mA. If the time is reduced to 1s, what should the current setting be if the distances all remain the same?
A. 2.4mA B. 45mA C. 120mA D. 150mA
Mathematics
Write 367 in expanded notation.
?
367 = __________ 
__________ 
__________ 
What will be an ideal response?
Mathematics
Determine whether the equation is linear. If it is linear, give values for a and b so that the equation can be written in the form ax + b = 0.9
- 13 = 0
A. Yes; a = -13, b = 9 B. Yes; a = 9, b = -13 C. Yes; a = 9, b = 13 D. No
Mathematics
Estimate the sum or difference by rounding each number to the nearest hundred.7,457
A. 16,700 B. 16,600 C. 17,000 D. 16,621
Mathematics